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Friction — Science STD 8 — Question

Gujarat BoardEnglish MediumSTD 8ScienceFriction1 Mark
MCQ
Airplanes are designed in a particular shape called the streamline shape. The streamline design reduces the.
  • A
    Speed of the plane.
  • B
    Weight of the plane.
  • C
    The cost of production.
  • ✓
    Heat generated by air friction.
✓

Answer

Correct option: D.
Heat generated by air friction.
The shape of an airplane is made streamlined to reduce air friction. The streamlined shape allows the easy passage of air. Therefore, the heat generated by air friction becomes less.

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